Officials in Texas are facing mounting questions about whether they did enough to get people out of harm's way before a flash flood swept down the Guadalupe River and killed more than 100 people, including 27 children and counselors at an all-girls Christian camp.

Key questions remain unanswered about the actions Texas officials took both before and during the catastrophic July Fourth holiday floods remain unanswered.

The report, citing anonymous sources, suggested FEMA's Texas flood response was delayed as a result of a Trump administration cost-saving rule.

Follow for live updates in the Texas flooding as the death toll rises to 120, as rescue operations start to shift to recovery phase

At a news conference on Sunday, Governor Greg Abbott said people in Texas were used to flash flood warnings, but there was no sense of how deadly this would be. "There's no expectation of a water wall of almost 30ft high," he added.

Texas Gov. Greg Abbott on Tuesday said investigative committees in the House and Senate will look at the response to deadly flooding in Central Texas, but cautioned not to place blame on any singular source.

Several organizations are accepting donations for those impacted by the floods, as well as first responders and volunteers.

Following weekend flooding, many residents are searching for more assistance from official sources. County officials say they are in the area but are focusing on recovery, debris removal.